67781001372080 has 20 divisors (see below), whose sum is σ = 157590828190272. Its totient is φ = 27112400548800.

The previous prime is 67781001372053. The next prime is 67781001372089. The reversal of 67781001372080 is 8027310018776.

It is a happy number.

67781001372080 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (67781001372089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423631258496 + ... + 423631258655.

Almost surely, 2^{67781001372080} is an apocalyptic number.

It is an amenable number.

67781001372080 is an abundant number, since it is smaller than the sum of its proper divisors (89809826818192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67781001372080 is a wasteful number, since it uses less digits than its factorization.

67781001372080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847262517164 (or 847262517158 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 67781001372080 in words is "sixty-seven trillion, seven hundred eighty-one billion, one million, three hundred seventy-two thousand, eighty".